Specifies the number of color bits per display pixel.
指定位图中每个像素颜色的位数。
It should be considered comprehensively with respect to the factors of optical resolution of scanner, color bits, brand and price.
选型时要根据扫描仪的光学分辨率、色位数、品牌、价格等因素综合考虑。
The number of bits for each color can differ as well.
每种颜色的bit数也会不同。
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